Modular traffic signal controller

Claim 1

A TRAFFIC SIGNAL CONTROLLER COMPRISING A FIRST CHASSIS HAVING A PLURALITY OF FIRST INTERVAL REGISTER STEPS MOUNTED THEREON, SAID FIRST CHASSIS HAVING A PLURAL TERMINAL FIRST ELECTRICAL CONNECTOR ADJACENT AN EXTERIOR SIDE OF SAID FIRST CHASSIS, FIRST GATING INPUT AND OUTPUT LINES ON SAID FIRST CHASSIS INTERCONNECTING THE INPUTS AND OUTPUTS OF ALL BUT TWO OF SAID PLURALITY OF FIRST INTERVAL REGISTER STEPS, ONE OF SAID TWO INTERVAL REGISTERS IN SAID PLURALITY OF FIRST REGISTER STEPS HAVING A GATING OUTPUT LINE CONNECTED TO A FIRST TERMINAL OF SAID FIRST CONNECTOR AND THE OTHER OF SAID TWO INTERVALS REGISTERS HAVING A GATING IINPUT LINE CONNECTED TO A SECOND DIFFERENT TERMINAL OF SAID FIRST CONNECTOR, AN EXTERNAL CONNECTOR ADAPTED TO SEPARABLY MATE WITH SAID FIRST ELECTRICAL CONNECTOR TO COMPLETE A CIRCUIT BETWEEN SAID FIRST AND SECOND TERMINALS WHEREBY SAID PLURALITY OF FIRST INTERVAL REGISTER STEPS ARE INTERCONNECTED IN A FIRST RING COUNTER CONFIGURATION ADAPTED TO CONTROL A FIRST PLURALITY OF SIGNAL LIGHTS IN A PREDETERMINED SEQUENCE, A SECOND CHASSIS HAVING A PLURALITY OF SECOND INTERVAL REGISTER STEPS THEREON, SAID SECOND CHASSIS HAVING A PLURAL TERMINAL SECOND ELECTRICAL CONNECTOR ADJACENT AN EXTERNAL SIDE OF SAID SECOND CHASSIS, SECOND GATING INPUT AND OUTPUT LINES ON SAID SECOND CHASSIS INTERCONNECTING THE IINPUTS AND OUTPUTS OF ALL BUT TWO OF SAID PLURALITY OF SECOND INTERVAL REGISTER STEPS, ONE OF SAID TWO INTERVAL REGISTERS IN SAID PLURALITY OF SECOND INTERVAL REGISTER STEPS HAVING A GATING INPUT LINE CONNECTED TO A FIRST TERMINAL OF SAID SECOND CONNECTOR AND THE OTHER OF SAID TWO INTERVAL REGISTER STEPS HAVING A GATING OUTPUT LINE CONNECTED TO A SECOND DIFFERENT TERMINAL OF SAID SECOND CONNECTOR, SAID SECOND CONNECTOR BEING CONSTRUCTED TO MATE WITH SAID FIRST CONNECTOR IN PLACE OF SAID EXTERNAL CONNECTOR TO COMPLETE CIRCUITS BETWEEN SAID FIRST TERMINALS AND SAID SECOND TERMINALS OF SAID FIRST AND SECOND CONNECTORS RESPECTIVELY THEREBY TO SEPARABLY INTERCONNECT THE INPUTS AND OUTPUTS OF ALL OF SAID FIRST AND SECOND INTERVAL REGISTERS IN A SECOND RING COUNTER CONFIGURATION HAVING A NUMBER OF STAGES GREATER THAN SAID FIRST RING COUNTER CONFIGURATION, AND ADAPTED TO CONTROL A SECOND PLURALITY OF SIGNAL LIGHTS, GREATER IN NUMBER THAN SAID FIRST PLURALITY OF LIGHTS, IN A PREDETERMINED SEQUENCE.